3 ms·Funny thing. When you google your username the first result is the php function.by rokhayakebe 17y agoFunny thing. When you google your username the first result is the php function.mahmud 17y agostrlen(3) first appeared in Reaserch Unix v7, circa January 1979: http://ftp.math.utah.edu/pub///mirrors/minnie.tuhs.org/PDP-11/Trees/V7/usr/src/libc/gen/strlen.c http://ftp.math.utah.edu/pub///mirrors/minnie.tuhs.org/PDP-1...strlen 17y agoTry using "man" instead, perhaps?